Developer credits
Git commits in Moodle 3.9.x by Avi Levy
commit dbae95c6da6c94a7a8f0dbf30633183ee3e60185 Author: Avi Levy <avi@sysbind.co.il> Date: Sat, 01 Feb 2020 02:26:47 +0800 Tag: v3.9.0-beta MDL-45227 editor_atto: add behat test for RTL and LTR direction